3'-Azido-3'-deoxy-5'-O-[5-(1,4,8,11-tetrahydrochloride-11-[4-[1,4,8,11-tetrahydrochloride-1,4,8,11-tetraazacyclotetradecanyl]methyl]benzyl}-1,4,8,11-tetraazacyclotetradecanyl]pentanoyl}thymidine AIDS-071444 AIDS071444